<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <son>
      <header>你真好</header>
    </son>
    <son>
      <aside>test</aside>
    </son>
    <son></son>
  </div>
  <script src="./vue.js"></script>
  <script>
    new Vue({
      el: '#app',
      data: {},
      components: {
        son: {
          template: `<div>
            <h2>son</h2>
            <!--slot插槽 就好比是坑-->
            <div class="box">
              <slot>hello</slot>
            </div>
          </div>`
        }
      }
    })
  </script>
</body>
</html>